There are other discussions about this on the relevant section of the Forum. In this case, if you end up on the SOR, then the police will be interested in any contact with anyone under the age of 18. They will probably report any such contact to Child Services for their consideration. If you get some kind of SHPO, there will probably be some reference to unsupervised contact, which the police define as "not supervised by one of the police, probation or social services." Approved contact might involve written consent from the parents/guardians.
Any conversation with your family would be on a different basis, unless they also have children (under-18s). Of course, some countries on the other side of the world are very clear about not admitting anyone with certain types of offence on their record.